remove VtsPythonVirtualenvPreparer from modules as they are now part of plan config Test: run vts-selftest Bug: 75983870 Change-Id: I6e8c73028c001c50d0bb6a3af61d2a3f67c2c8be Merged-In: I6e8c73028c001c50d0bb6a3af61d2a3f67c2c8be (cherry picked from commit 70288fdeaa251a7b572b5855cec4bb205026b2ea)